Citigroup is a diversified financial services holding company headquartered in New York City. The company traces its roots to 1812 when it was chartered as City Bank of New York, making it one of the oldest banking institutions in the United States. The company became The National City Bank of New York in 1865 and was formally renamed Citibank in 1976. The modern Citigroup was formed on October 8, 1998, through the merger of Citicorp and Travelers Group. Trading under ticker symbol NYSE: C, Citigroup is the third-largest banking institution in the United States by assets and is considered systemically important by the Financial Stability Board. The company operates through five business segments: Services, Markets, Banking, U.S. Personal Banking, and Wealth. Services includes treasury and trade solutions and securities services for multinational corporations and institutions. Markets provides sales and trading for equities, foreign exchange, and fixed income products. Banking encompasses investment banking, corporate banking, and commercial banking services. U.S. Personal Banking offers credit cards and retail banking to consumers and small businesses. Wealth delivers financial services to high-net-worth clients through banking, lending, and investment products. The company serves clients across 160 countries and jurisdictions.